This is the traditional New Haven Tomato and Mozzarella pie. The recipe is based on the way Pepe’s has (and still does) make this classic. Fresh tomato sauce, oregano, freshly grated Pecorino-Romano cheese, olive oil, and topped with deli sliced, very thin mozzarella. When it bakes, the tomato sauce boils up, and through, the thin mozzarella slices and creates a distinctive topping, a pure fusion of the tomato and cheese. Very different from your typical cheese pie and absolutely delicious.